The receptors for general senses are modified dendritic endings of sensory neurons that can be found in areas such as skin, mucus membranes, and connective tissues, and detect stimuli directly. These receptors are distributed throughout the body. Examples are receptors that detect pressure, pain, vibration, hunger, and temperature.
The information detected by the sensory receptors is called the stimulus. The stimulus activates the sensory receptor, which, in turn, sends electrochemical signals to the central nervous system (CNS) for interpretation and response.
Sensory receptors are essential for interacting with the external environment, acquiring resources from the environment, keeping the body safe, and maintaining constant, favorable conditions in the body called homeostasis. They detect information from the internal and external environment using sensory receptors or specialized cells.
The special senses are vision, hearing, equilibrium, smell, and taste. The classification system based on stimulus location divides sensory receptors into three types: exteroceptors, interoceptors, or proprioceptors. An exteroceptor detects information from the external environment.
Sensory receptors are classified by their structure, location, and the type of stimulus received.
Sensory receptors respond to stimuli using specialized membrane proteins and relay information to the brain about the modality, location, intensity, and duration of the stimulus.
1. What is a dendrite? A) It is a cell that sends signals to the central nervous system based on sensory input. B) It is the part of a neuron that carries information to the cell body. C) It is a cell that sends signals to the
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